Honda builds a nat gas Civic here in Indiana. But the number of available fueling stations is really low, and the cost of a home gas compression rig is quite high.
But the economics seem to work for UPS, a lot of their “last mile” trucks now are nat gas, with on-site fueling at their depots.
When I lived in Palm Springs the entire Sun Bus line was running on Natural Gas, they also would install conversion kits on your car for a couple grand twenty years ago.